CN104266721A - Integrated ultrasonic liquid indicator - Google Patents
Integrated ultrasonic liquid indicator Download PDFInfo
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- CN104266721A CN104266721A CN201410493075.8A CN201410493075A CN104266721A CN 104266721 A CN104266721 A CN 104266721A CN 201410493075 A CN201410493075 A CN 201410493075A CN 104266721 A CN104266721 A CN 104266721A
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- ultrasonic probe
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Abstract
The invention discloses an integrated ultrasonic liquid indicator. The integrated ultrasonic liquid indicator comprises an ultrasonic probe, a control device, and a housing for mounting the ultrasonic probe and the control device; the control device comprises a microprocessor, an emitting output circuit, a data storing circuit, a receiving input circuit, a power supply circuit and a wireless emitting module; the emitting output circuit can be used for controlling the ultrasonic probe to send an ultrasonic signal; the receiving input circuit is used for receiving the ultrasonic signal which is reflected through the liquid surface, and then the ultrasonic signal is processed through the microprocessor to obtain the liquid level height; the liquid level height data is stored by the data storing circuit, then is emitted through the wireless emitting module and finally is received through the wireless terminal which is arranged at a control center or a monitoring center, so as to monitor the liquid level height on real time. According to the integrated ultrasonic liquid indicator, the integrated design is adopted, so that the mounting is convenient, any additional wire arrangement is saved, and the practicability is high.
Description
Technical field
The present invention relates to integral type ultrasonic level gage.
Background technology
Level gauging is widely used in industrial processes, and current level measuring method has had multiple, such as utilizes hand gauging, glass tube, float-type, capacitance method, ultrasound wave, radar, optical fiber etc. to measure liquid level.Need in practical application accurately to measure the liquid level in closed container, because these liquid are all generally explosive, volatile, deep-etching and toxic liquid, certain difficulty is brought to traditional contact level sensing, realize contactless, intelligent, high precision, low-power consumption is the developing direction of liquid level gauge, because hyperacoustic speed is much smaller compared with the light velocity, travel-time ratio is easier to detect, and be easy to directional transmissions, good directionality, intensity controls well, solve pressure unit, condenser type, the winding that the metering systems such as float-type bring, reveal, contact medium, safeguard the troubles such as expensive, there are obvious advantage and vast potential for future development.
But current ultrasonic level gage mostly is split-type structural, main frame is set to the distance with ultrasonic probe one Dingyuan, and is transmitted by cable, and it installs trouble very, is not easy to measure liquid level fast or temporarily.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides integral type ultrasonic level gage.
The technical solution adopted for the present invention to solve the technical problems is:
Integral type ultrasonic level gage, comprise ultrasonic probe, control device and the housing for installing ultrasonic probe and control device, described control device comprises microprocessor, launch output circuit, data storage circuitry, receive input circuit, feed circuit and wireless transmitter module, described transmitting output circuit can control ultrasonic probe and send ultrasonic signal, described reception input circuit receives the ultrasonic signal that returns through liquid level reflection and carries out process by microprocessor and draws liquid level, liquid level data are stored by data storage circuitry, by wireless transmitter module, liquid level data are sent again.
Described transmitting output circuit comprises power magnitude amplifying circuit, pulse-generating circuit.
Described reception input circuit comprises amplifying circuit, filtering circuit, A/D change-over circuit.
Also comprise a correction measurer, this correction measurer is arranged on below ultrasonic probe, and there is a known difference in height between this correction measurer and ultrasonic probe.
Described ultrasonic probe is piezoelectric ceramics integral type ultrasonic sensor.
Described control device also comprises temperature collection circuit, plays temperature compensation function.
Described transmitting output circuit is provided with isolating transformer.
The invention has the beneficial effects as follows: integral type ultrasonic level gage, comprise ultrasonic probe, control device and the housing for installing ultrasonic probe and control device, described control device comprises microprocessor, launch output circuit, data storage circuitry, receive input circuit, feed circuit and wireless transmitter module, described transmitting output circuit can control ultrasonic probe and send ultrasonic signal, described reception input circuit receives the ultrasonic signal that returns through liquid level reflection and carries out process by microprocessor and draws liquid level, liquid level data are stored by data storage circuitry, by wireless transmitter module, liquid level data are sent again, again by the wireless terminal reception data being arranged on control center or Surveillance center, monitoring liquid level that can be real-time, owing to adopting unitary design, install very convenient, without the need to extra wiring, practical.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is circuit theory schematic diagram of the present invention.
Embodiment
With reference to Fig. 1, Fig. 1 is the circuit theory schematic diagram of the present invention's specific embodiment, as shown in the figure, integral type ultrasonic level gage, comprise ultrasonic probe, control device and the housing for installing ultrasonic probe and control device, described control device comprises microprocessor, launch output circuit, data storage circuitry, receive input circuit, feed circuit and wireless transmitter module, described transmitting output circuit comprises power magnitude amplifying circuit, pulse-generating circuit, described reception input circuit comprises amplifying circuit, filtering circuit, A/D change-over circuit, described control device has also comprised the temperature collection circuit of temperature compensation function, described transmitting output circuit is also provided with the vibration isolation transformer can isolating subsequent ultrasonic ripple.
Preferably, STC89C52 single-chip microcomputer selected by described microprocessor, described ultrasonic probe is water proof type piezoelectric ceramics integral type ultrasonic sensor TCF40-18TR1, ADS930 modulus conversion chip selected by described A/D change-over circuit, described temperature collection circuit selects digital temperature sensor DS18B20, described data storage circuitry adopts AT24C04 chip, and described wireless transmitter module and wireless receiving module select NRF2401 chip.
During use, ultrasonic probe is arranged on above liquid level, just right with liquid level, after system initialization, the pulse signal produced by microprocessor is after power magnitude is amplified, excitation ultrasonic probe produces the ultrasound wave of high frequency, ultrasound wave passes to liquid level through medium, it is echoed signal that ultrasonic energy is reflected back toward ultrasonic probe, transmit and echoed signal, together amplify in entering signal receiving system, after filtering process, convert digital signal to through A/D and send into microprocessor, microprocessor processes, calculate, conversion, and consider the temperature that temperature collection circuit is measured, carry out temperature compensation, then the wireless terminal being arranged on control center or Surveillance center is sent to by wireless transmitter module, monitoring liquid level that can be real-time, owing to adopting unitary design, install very convenient, without the need to extra wiring, practical.
Further, the present invention also comprises a correction measurer, this correction measurer is arranged on below ultrasonic probe, and there is a known difference in height between this correction measurer and ultrasonic probe, ultrasonic probe can send correction ultrasonic signal, the calibrated measurer of this correction ultrasonic signal is reflected back ultrasonic probe, can calculate the real-time gas velocity of sound, realize the function of the correcting gas velocity of sound according to ultrasonic propagation time and difference in height.
Above better enforcement of the present invention is illustrated; certainly; the present invention can also adopt form different from the embodiment described above; the equivalent conversion that those of ordinary skill in the art do under the prerequisite without prejudice to spirit of the present invention or change accordingly, all should belong in protection scope of the present invention.
Claims (7)
1. integral type ultrasonic level gage, it is characterized in that: comprise ultrasonic probe, control device and the housing for installing ultrasonic probe and control device, described control device comprises microprocessor, launch output circuit, data storage circuitry, receive input circuit, feed circuit and wireless transmitter module, described transmitting output circuit can control ultrasonic probe and send ultrasonic signal, described reception input circuit receives the ultrasonic signal that returns through liquid level reflection and carries out process by microprocessor and draws liquid level, liquid level data are stored by data storage circuitry, by wireless transmitter module, liquid level data are sent again.
2. integral type ultrasonic level gage according to claim 1, is characterized in that: described transmitting output circuit comprises power magnitude amplifying circuit, pulse-generating circuit.
3. integral type ultrasonic level gage according to claim 1, is characterized in that: described reception input circuit comprises amplifying circuit, filtering circuit, A/D change-over circuit.
4. integral type ultrasonic level gage according to claim 1, is characterized in that: also comprise a correction measurer, and this correction measurer is arranged on below ultrasonic probe, and there is a known difference in height between this correction measurer and ultrasonic probe.
5. integral type ultrasonic level gage according to claim 1, is characterized in that: described ultrasonic probe is piezoelectric ceramics integral type ultrasonic sensor.
6. integral type ultrasonic level gage according to claim 1, is characterized in that: described control device also comprises temperature collection circuit, plays temperature compensation function.
7. integral type ultrasonic level gage according to claim 1, is characterized in that: described transmitting output circuit is provided with isolating transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410493075.8A CN104266721A (en) | 2014-09-24 | 2014-09-24 | Integrated ultrasonic liquid indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410493075.8A CN104266721A (en) | 2014-09-24 | 2014-09-24 | Integrated ultrasonic liquid indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104266721A true CN104266721A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410493075.8A Pending CN104266721A (en) | 2014-09-24 | 2014-09-24 | Integrated ultrasonic liquid indicator |
Country Status (1)
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| CN (1) | CN104266721A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402055A (en) * | 2017-09-07 | 2017-11-28 | 河南质量工程职业学院 | A kind of external-placed type supersonic liquid level measuring system and method based on ARM |
| CN112539805A (en) * | 2020-11-30 | 2021-03-23 | 北京航天控制仪器研究所 | Ultrasonic liquid level measurement system and method for sound velocity compensation by using DTS (delay tolerant system) |
| CN113406196A (en) * | 2021-07-13 | 2021-09-17 | 广东飞达交通工程有限公司 | Wireless transmission system for ultrasonic detection of aqueous film-forming foam liquid tank |
| CN114046858A (en) * | 2021-11-10 | 2022-02-15 | 四川泛华航空仪表电器有限公司 | Anti-inclination and anti-fluctuation ultrasonic liquid level sensor system and operation method thereof |
| CN117387724A (en) * | 2023-09-22 | 2024-01-12 | 南通海狮船舶机械有限公司 | High-precision liquid level remote measuring and alarming system |
-
2014
- 2014-09-24 CN CN201410493075.8A patent/CN104266721A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402055A (en) * | 2017-09-07 | 2017-11-28 | 河南质量工程职业学院 | A kind of external-placed type supersonic liquid level measuring system and method based on ARM |
| CN112539805A (en) * | 2020-11-30 | 2021-03-23 | 北京航天控制仪器研究所 | Ultrasonic liquid level measurement system and method for sound velocity compensation by using DTS (delay tolerant system) |
| CN112539805B (en) * | 2020-11-30 | 2023-07-18 | 北京航天控制仪器研究所 | Ultrasonic liquid level measurement system and method for sound velocity compensation by adopting DTS |
| CN113406196A (en) * | 2021-07-13 | 2021-09-17 | 广东飞达交通工程有限公司 | Wireless transmission system for ultrasonic detection of aqueous film-forming foam liquid tank |
| CN114046858A (en) * | 2021-11-10 | 2022-02-15 | 四川泛华航空仪表电器有限公司 | Anti-inclination and anti-fluctuation ultrasonic liquid level sensor system and operation method thereof |
| CN117387724A (en) * | 2023-09-22 | 2024-01-12 | 南通海狮船舶机械有限公司 | High-precision liquid level remote measuring and alarming system |
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Legal Events
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |